Improvement in wheat-cultivators



.ru Lw La EN Mu Mu M0 |t. Sa ne Jh W No. 209,431.' Patented oct. 29,1878.

UNITED S'rn'rnsv PAT-ENT FFICE.

JOHN STIMMELL, OF COLUMBUS, OHIO.

IM POVEM ENT IN WHEAT-CULTIVATORS.

Specification forming part of Letters Patent No. 209,431, dated October 29, 1878 application filed l August 23, 1878.

To all whom it may concern:

Be it known that I, JOHN STIMMELL, of Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Wheat Cultivators; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference bein ghad to the accompanying drawings, which form a part of this specification.

Figure 1 is a view, in perspective, of a machine embodying the improvements in my invention. Fig. 2 is a top view, and Fig. 3 is a bottom view, of the same.

This invention has relation to cultivators for cultivating wheat that has been planted by drilling; and it consists of the improvements in the construction of the same hereinafter fully described, and particularly pointed out in the claim.

In the accompanying drawings similar letters of reference indicate corresponding parts in the several figures.

A- frame, A, of ordinary construction, is supported-on wheels B B, and a seat, C, is provided for the driver. 4

A cross-bar, D, is pivoted to the under side of the cross -piece E of the frame A, and hinged to this cross-barD, and extending backwardlytherefrom, arethe cnltivator-beams F F.

A brace, Gr, connects and strengthens the cultivator-beams F F near their front ends, and a brace, H, connects and strengthens them at their rear ends.

The shanks IJ ofthe cultivators are curved outward and downward, as shown, and are secured to the cultivator-beams F F by bolts, or in any other suitable manner. The cultivatorshanks I J enter notches a in the brace H, to prevent'lateral motion of the said shanks.

Perforated standards K are secured near the rear ends of the cultivator-beams F F, and

are strengthened by semicircular' braces L L.

Handles M Mare pivoted upon the crosspiece E, and extend back beyond the cultivator-shanks I J The handles M M are provided with loops N N, through which the perforated standards K project. Split pins b b, provided with friction-rollers c c, are inserted in the perforations in the standards K to retain the standards in the loops. A

Beveled or inclined studs O Oare secured upon the cross-piece P,to limit the lateral motion of the handles M M.

' A roller, Q, having chains R R, connected to the cultivator-beams F F, is provided with a lever, S, and has its bearings in the side rails of theframe A in the rear of the wheels B B.

The rear cross-piece or brace, H, is provided with a hook, ',l, to engage with the lever AS to elevate the cultivators.

-The cultivators or plow-points U are forked in their upper ends, and provided with two lateral holes, cf.

The points of the shanks I J have corresponding holes, and enter the forks in the points U.

Through the holes e metallic bolts or rivets h are inserted, and inthe holes f wooden pins are inserted, so that when the points strike an unyielding obstacle the wooden pins will break and permit the point to swing back over the obstacle.

` Double and single whiftletrees are provided, as shown.

It is intended to cultivate the Wheat after it has grown, and only drilled wheat can be cultivated. In this instance eight points, U, are employed.

The cultivator should correspond in the number of its teeth or points with the drill that was used to plant the wheat.

.By having the plow-beams F F hinged andthe handles M M pivoted, as shown and described, the plows can be guided between the rows of wheat even when the team is not driven straight. If these parts were rigid, as in the ordinary harrow, the wheat would be torn out by the points U.

The depth to which the points may be sunk is regulated by the split pins in the perforated standards K K.

Having thus described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States,

In a wheat-cultivator, the combination of dles M, provided with loops N, constructed Witnesses:

the pivoted cross-bar D, having hinged cul- In testimony that I claim the foregoing as tivator-beams F F, provided with the Shanks my own I have hereto affixed my signature in I J, having points U, notched cross-piece H, presence of two Witnesses.

standards K, having pins b, and pivoted han- JOHN STIMMELL.

and operating substantially as and for the pur- WILLIAM WILLIAMS, poses set forth. EDWIN K. SALLEE. 

